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CN102812377A - Superconductor rf coil array - Google Patents

Superconductor rf coil array Download PDF

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CN102812377A
CN102812377A CN 201080050898 CN201080050898A CN102812377A CN 102812377 A CN102812377 A CN 102812377A CN 201080050898 CN201080050898 CN 201080050898 CN 201080050898 A CN201080050898 A CN 201080050898A CN 102812377 A CN102812377 A CN 102812377A
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coil
configured
rf
signal
spatial
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CN 201080050898
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Chinese (zh)
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CN102812377B (en )
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马启元
高尔震
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美时医疗控股有限公司
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34015Temperature-controlled RF coils
    • G01R33/34023Superconducting RF coils
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34007Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34015Temperature-controlled RF coils
    • G01R33/3403Means for cooling of the RF coils, e.g. a refrigerator or a cooling vessel specially adapted for housing an RF coil
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
    • G01R33/3415Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with fileiple receiver channels

Abstract

A superconducting RF coil array which may be used in whole body MRI scanners and/or in dedicated MRI systems. Some embodiments provide a superconducting RF coil array for at least one of receiving signals from and transmitting signals to a sample during magnetic resonance analysis of the sample, the superconducting RF coil array comprising a thermally conductive member configured to be cryogenically cooled, and a plurality of coils elements comprising superconducting material, wherein each coil element is thermally coupled to the thermally conductive member and is configured for at least one of (i) receiving a magnetic resonance signal from a spatial region that is contiguous with and/or overlaps a spatial region from which at least one other of the plurality of coil elements is configured to receive a signal and (ii); transmitting a radiofrequency signal to a spatial region that is contiguous with and/or overlaps a spatial region to which at least one other of the plurality coil elements is configured to transmit a radiofrequency signal.

Description

超导体RF线圈阵列 RF coil array superconductor

[0001] 相关申请 [0001] RELATED APPLICATIONS

[0002] 本申请要求2009年9月21日申请的申请号61/244,132的美国临时申请的优先权,针对每一个许可或未禁止通过引用实现并入的PCT成员国和地区,其全部内容通过引用并入此处。 [0002] This application claims priority to US Provisional Application No. 61 / 244,132 of September 21, 2009 application, prohibit Member States and regions to achieve PCT incorporated by reference for each license or in its entirety the contents of which are incorporated herein by reference.

技术领域 FIELD

[0003] 本发明总体涉及磁共振成像及光谱学,尤其是,本发明涉及包括多个线圈元件的超导体线圈阵列,其构造成线圈面阵或线圈体积阵,用于根据磁共振技术接受来自待检查的样品的信号及/或发送信号到样品,此外,本发明涉及利用这种超导体线圈阵列的磁共振成像及/或光谱设备及/或方法。 [0003] The present invention generally relates to magnetic resonance imaging and spectroscopy, in particular, the present invention relates to a superconducting coil array comprising a plurality of coil elements, configured in a coil or surface coil array matrix volume, for receiving magnetic resonance from the art to be check the sample signals and / or transmit signals to the sample, in addition, this invention relates to a magnetic resonance imaging superconducting coil array and / or spectroscopic apparatus and / or method of use.

背景技术 Background technique

[0004] 磁共振成像(MRI)技术现今一般地用于全世界较大的医疗机构,并且在医疗实践中已经带来了显著和独特的益处。 [0004] Magnetic resonance imaging (MRI) technology used in the world today are generally larger medical institutions, and in medical practice has resulted in a significant and unique benefits. 在MRI已经被发展为一种用于对结构和解剖进行成像的完善的诊断工具的同时,MRI也被发展用于对功能性活动和其他生物物理和生物化学特性或过程(例如血液流、代谢物/新陈代谢、扩散)进行成像,这些磁共振(MR)成像技术中的一些被称为功能性MRI、光谱MRI或磁共振光谱成像(MRSI)、扩散加权成像(DWI)和扩散张量成像(DTI)。 In MRI has been developed as a diagnostic tool to improve the anatomical structure and for simultaneous imaging, MRI has also been developed for functional activity and other biochemical and biophysical characteristics or processes (e.g., blood flow, metabolic was / metabolism, diffusion) imaging, the magnetic resonance (MR) imaging techniques some of which are known as functional MRI, MRI spectroscopy or magnetic resonance spectroscopic imaging (the MRSI), diffusion-weighted imaging (DWI) and diffusion tensor imaging ( DTI). 这些磁共振成像技术,除了其用于标识和评估病理和确定所检查的组织的健康状态的医疗诊断价值之外,还具有广阔的临床和研究应用。 The magnetic resonance imaging techniques, in addition to the diagnostic value of their health status is used to identify and evaluate pathology and determine the organization's medical examination, but also has extensive clinical and research application.

[0005] 在典型的MRI检查中,患者的身体(或样品对象)被放置在检查区域内,并由MRI扫描器中的患者支撑件支撑,其中,主要(主)磁体提供实质上恒定和均匀的主要(主)磁场。 [0005] In a typical MRI examination, the body (or sample object) is placed within a patient examination region, the patient support member is supported by the MRI scanner, wherein the main (primary) to provide a substantially constant and uniform magnet primary (main) magnetic field. 磁场将诸如身体中的氢(质子)的进动原子的核磁化排成一个方向。 The magnetic nuclear magnetization of the body hydrogen (protons) precessing atoms arranged in such a direction. 磁体内的梯度线圈组件造成给定位置的磁场的小变化,从而提供成像区域中的共振频率编码。 Gradient coil assembly within the magnet due to a small change in the magnetic field of a given location, thereby providing the resonance frequency of the imaging coding region. 在计算机控制下,根据脉冲序列选择性驱动射频(RF)线圈,以在患者中产生瞬时振荡的横向磁化信号,该信号由RF线圈检测,并通过计算机处理可以被映射至患者的空间上局部化的区域,从而提供所检查的感兴趣区域的图像。 Under computer control, in accordance with a drive pulse sequence selective radiofrequency (RF) coil to an instantaneous oscillation signal generating transverse magnetization in a patient, the signal detected by the RF coil, and processed by a computer may be mapped to a localized space on the patient region, thereby providing an image of the examined region of interest.

[0006] 在通常的MRI配置中,典型地由螺线管磁体设备来产生静态主磁场,患者平台置于由螺线管绕组(即主磁孔)缠绕的圆筒形空间中。 [0006] In a typical MRI configuration, typically generating a static main magnetic field by the solenoid magnet apparatus, the patient table is placed the cylindrical space defined by the solenoid coil (i.e., main magnetic holes) in the wound. 主磁场的绕组典型地实现为低温超导体(LTS)材料,并且利用液氦来进行超冷却,以减小电阻,从而最小化所产生的热量以及创建和维持主磁场所需的功率的量。 Winding of the main magnetic field is typically implemented as a low temperature superconductor (LTS) material, and the use of liquid helium to cool over, to reduce the resistance, and thus the amount of heat required to create and maintain the power produced by the main magnetic field is minimized. 现有LTS超导MRI磁体主要由铌-钛(NbTi)和/或Nb3Sn材料制成,利用低温恒温器将该材料冷却至4. 2K的温度。 LTS conventional superconducting MRI magnet is mainly made of niobium - made of titanium (the NbTi) and / or the Nb3Sn material by the material is cooled to the cryostat temperature of 4. 2K.

[0007] 如本领域技术人员所知道的那样,磁场梯度线圈一般被配置为沿空间中的三个主要笛卡尔轴(这些轴中的一个是主磁场的方向)中的每一个选择性地提供线性磁场梯度,使得磁场的幅度随检查区域内的位置而变化,根据在区域内的位置对来自感兴趣的区域内的不同位置的磁共振信号的特性(如信号的频率和相位)进行编码(从而提供空间局部化)。 [0007] As those skilled in the art know, the magnetic field gradient coils is generally configured in three main Cartesian axes in space (which is a shaft direction of the main magnetic field) in a selectively provide each a linear magnetic field gradient, such that the amplitude of the magnetic field within the examination region with the position change, encoding characteristics (e.g., frequency and phase of the signal) magnetic resonance signals at different locations within the region of interest from the position in the region ( thereby providing spatial localization). 典型地,利用穿过线圈缠绕的鞍座或螺线管绕组(它们附着至与包含主磁场的绕组的较大圆柱体同心并安装于其内部的圆柱体)的电流来创建梯度场。 Typically, the coil is wound through the use of a saddle or a solenoid winding (which is attached to the cylinder and comprising a larger concentric windings mounted thereon, and the main magnetic field inside the cylinder) to create the gradient field current. 与主磁场不同,用于创建梯度场的线圈典型地是通常的室温铜绕组。 With different main magnetic field coil is typically used to create the gradient field is generally room temperature copper windings. 梯度强度和场线性对于所产生图像的细节的精度以及对于关于组织化学的信息(例如在MRSI中)都至关重要。 Linear gradient and field strength for the resulting image detail and accuracy are critical for the information (e.g. in the MRSI) on histochemistry.

[0008] 自从MRI出现起,对改进MRI质量和能力的追求从未停止,例如通过提供更高的空间分辨率、更高的频谱分辨率(例如对于MRSI)、更高的对比度和更快的获取速度。 [0008] Since MRI appearance, the pursuit of quality and capacity improvements MRI never stopped, for example by providing a higher spatial resolution, higher spectral resolution (for example, MRSI), higher contrast and faster acquisition speed. 例如,提高的成像(获取)速度有利于最小化成像模糊,所述成像模糊是由于图像获取期间成像区域中的瞬时改变导致的,所述瞬时改变为例如患者移动、自然解剖性移动和/或功能性移动(例如心跳、呼吸、血液流动)和/或自然生物化学变化(例如由于MRSI期间的新陈代谢导致)造成的变化。 For example, to improve imaging (acquisition) is minimized in favor speed imaging blur, the imaging blur due to an instantaneous change in the imaging region during image acquisition due to, for example, changing the instantaneous movement of the patient, the natural anatomical movement and / or functionality of mobile (e.g. heart rate, respiration, blood flow) and / or natural biochemical changes (e.g., due to the metabolism during MRSI lead) caused by changes. 类似地,例如,由于在光谱MRI中,用于获取数据的脉冲序列对频谱信息进行编码(除了对空间信息进行编码以外),为了改进临床实用性和光谱MRI的效用,最小化获取充分的频谱和空间信息以提供期望的频谱分辨率和空间局部化是尤其重要的。 Similarly, for example, in MRI since the spectrum, the pulse sequence for acquiring data to be encoded spectral information (in addition to encode spatial information), in order to improve the utility of the clinical utility of MRI and spectroscopy, frequency spectrum to minimize obtain sufficient and spatial information to provide the desired spectral resolution and spatial localization is particularly important.

[0009] 在高对比度、分辨率和获取速度方面,多个因素有助于得到更好的MRI图像质量。 [0009] In the high-contrast, resolution and speed of acquisition, several factors contribute to better MRI image quality. 影响图像质量和获取速度的重要参数是信噪比(SNR)。 Affect the image quality and acquisition speed of the important parameter is the signal to noise ratio (SNR). 通过在MRI系统的预放大器之前增大信号来增大SNR对于提高图像质量而言很重要。 SNR is increased by increasing the pre-amplifier prior to the MRI system is important to improve the signal quality in terms of image. 改进SNR的一种方式是增大磁体的磁场强度,因为SNR与磁场的幅度成比例。 One way to improve the SNR is to increase the magnetic field strength of the magnet, since the SNR is proportional to the amplitude of the magnetic field. 然而,在临床应用中,MRI在磁体的场强幅度上有最高限度(US FDA的当前最高限度为3T (特斯拉))。 However, in clinical practice, MRI has the highest limit (current ceiling of US FDA for 3T (Tesla)) on the magnitude of the field strength of the magnet. 改进SNR的其他方式包括在合适时:通过减小视野(在合适时)来减小样品噪声、减小样品与RF线圈之间的距离、和/或减小RF线圈噪声。 Other ways to improve the SNR include, where appropriate: by reducing the field of view (where appropriate) to reduce the noise sample, reducing the distance between the sample and the RF coil, and / or reduce the noise of the RF coil.

[0010] 尽管为了改进MRI做出了不懈努力和许多进步,然而仍继续需要进一步改进MRI,例如以提供更大的对比度、改进的SNR、更高的获取速度、更高的空间和时间分辨率和/或更高的频谱分辨率。 [0010] Although in order to improve MRI has made unremitting efforts and a lot of progress, but continued need for further improvement MRI, for example, to provide greater contrast, improved SNR, get higher speed, higher spatial and temporal resolution and / or higher spectral resolution.

[0011] 此外,影响MRI技术的进一步使用的一个重要因素是与高磁场系统相关联的高成本,对于购买和维护而言均是如此。 [0011] In addition, a further important factor affecting the use of MRI technology is the high cost and high magnetic field associated with the system, for the purchase and maintenance of terms is true. 因此,提供能够以合理成本制造和/或维护的高质量MRI成像系统,从而允许MRI技术更广泛地使用,将是有利的。 Thus, at a reasonable cost to manufacture and / or maintenance of a high quality MRI imaging system, allowing a wider use of MRI techniques, would be advantageous.

发明内容 SUMMARY

[0012] 本发明的各种实施例提供一种超导RF线圈阵列,其可用在全身MRI扫描器及/或专用MRI系统中。 The various [0012] embodiments of the present invention provides a superconducting RF coil array, which may be used in whole-body MRI scanner and / or dedicated MRI system. 本发明的一些实施例提供一种超导RF线圈阵列,用于在对样品进行磁共振分析期间完成从样品接收信号和发送信号到样品中的至少一个,所述超导RF线圈阵列包括:导热部件,构造成被低温冷却;以及包括超导材料的多个线圈元件,其中每个线圈元件被热耦合到所述导热部件并构造成用于下述动作的至少一个:(i)从空间区域接收磁共振信号,所述空间区域与所述多个线圈元件中的至少一个另外的线圈元件构造成从其处接收信号的那个空间区域毗邻及/或交迭,及(ii)发送射频信号到空间区域,所述空间区域与所述多个线圈元件中的至少一个另外的线圈元件构造成发送射频信号至其处的那个空间区域毗邻及/或交迭。 Some embodiments of the present invention to provide a superconducting RF coil array for performing at least one of the sample receiving signals from and transmitting signals to the sample during analysis of a sample of superconducting magnetic resonance RF coil array comprising: a thermally conductive member, configured to be cooled cryogenic; and a plurality of coil elements comprises a superconducting material, wherein each coil element is thermally coupled to the thermally conductive member and configured to at least one of the following actions: (i) from the space area receiving magnetic resonance signals, the plurality of the spatial region and the spatial region of at least one further coil element is configured from the received signal coil elements adjacent and / or overlapping, and (ii) to transmit RF signals spatial region, the space region and at least one further coil element is configured to transmit radio frequency signals to the plurality of coil elements that spatial region at which adjacent and / or overlapping.

[0013] 在一些实施例中,每个线圈元件可包括设置在导热基板上的薄膜超导线圈。 [0013] In some embodiments, each coil element may include a thin film superconducting coil disposed on a thermally conductive substrate. 导热基板可包括矾土和蓝宝石中的至少一种,所述导热部件可实施为矾土板和蓝宝石板。 The thermally conductive substrate may include alumina and at least one of sapphire, the thermally conductive member may be implemented as alumina plate and the Lan Baoshi plate. 在各种实施例中,每个线圈元件的导热基板可被直接或间接地热耦合到所述导热部件。 In various embodiments, the thermally conductive substrate each coil element may be thermally coupled directly or indirectly to the thermally conductive member. 例如,在一些实施例中,多个导热基板的每一个被直接热耦合到所述导热部件,所述导热基板的至少一个另外那些的每一个被间接或非直接地耦合到所述导热部件。 For example, in some embodiments, each of which is directly thermally coupled to the thermally conductive substrate a plurality of heat conducting member, said at least one further thermally conductive substrate that each is indirectly or directly coupled to the heat conducting member. 这些其它的导热基板可被直接热耦合到所述直接热耦合到所述导热部件的导热基板的至少一个,由此被间接热耦合到所述导热部件。 These other thermally conductive substrate may be directly thermally coupled directly to said at least one thermally conductive member thermally coupled to the thermally conductive substrate, thereby indirectly thermally coupled to the heat conducting member. 导热间隔部件(例如支座)可替代地或额外地用来将这些其它导热基板的热耦合到所述导热部件,由此在这些其它导热基板和导热部件之间提供间接热耦合。 Heat conductive spacer member (e.g., support) may alternatively or additionally be used for these other thermally conductive substrate thermally coupled to the thermally conductive member, thereby providing indirect thermal coupling between the substrate and the other thermally conductive heat transfer member.

[0014] 在一些实施例中,超导线圈的一个或更多可包括高温超导体,其可实施为例如薄膜及/或用高温超导带。 [0014] In some embodiments, a superconducting coil may comprise one or more high-temperature superconductor, which may be implemented, for example, a film and / or high-temperature superconducting tape. 替代地或额外地,邻近的高温超导线圈可以构造成使得它们关于导电方面是分开的并在空间上交迭。 Alternatively or additionally, adjacent the HTS coils can be configured such that they are separated on the conductive aspects and overlap in space. 这些邻近的交迭线圈可设置在导热部件的公共表面的上面或上方及/或设置在导热部件的相对表面的上面。 These overlapping coil may be disposed adjacent or above the top surface of the heat conducting member of the public and / or disposed on opposite surfaces of the thermally conductive member.

[0015] 在不同实施例中,超导RF线圈阵列可构造成线性阵列或二维阵列或体积阵。 [0015] In various embodiments, the superconducting RF coil array may be configured in a linear array or two dimensional array or matrix volume. 线圈可实施为仅接收、仅发送、或者发送和接收。 Coils may be implemented to receive only, transmit only, or transmitting and receiving.

[0016] 在一些实施例中,每个线圈元件包括至少一个高温超导线圈和导热基板,所述导热基板被热耦合到(i)至少一个高温超导线圈及(ii)所述导热部件。 [0016] In some embodiments, each coil element comprises at least one high temperature superconducting coil and thermally conductive substrate, the thermally conductive substrate thermally coupled to (i) at least one high-temperature superconducting coil, and (ii) said heat conducting member. 导热基板可构造成具有外表面的大致圆柱形结构,至少一个超导线圈设置在所述外表面上。 Thermally conductive substrate may be configured into a generally cylindrical configuration having an outer surface, at least one superconducting coil disposed on the outer surface. 例如,每个导热基板(i)是大致环形形状的,具有相对于直径而言小的高度,及(ii)具有绕其外表面设置的一个超导线圈。 For example, each of the thermally conductive substrate (i) is a generally annular shape having a small height, and a superconducting coil (ii) having disposed around its outer surface with respect to diameter.

[0017] 在一些实施例中,超导RF线圈阵列可还包括热耦合到所述导热部件的至少一个导热基板,其中每个线圈元件包括高温超导线圈。 [0017] In some embodiments, the superconducting RF coil array may further comprise at least one thermally conductive substrate thermally coupled to the thermally conductive member, wherein each coil includes a high temperature superconducting coil element. 在一些这样的实施例中,所述至少一个导热基板的每一个可构造成具有外表面的大致圆柱形结构,至少一个所述高温超导线圈设置在所述外表面上。 In some such embodiments, the thermally conductive substrate at least one each of a generally cylindrical structure may be configured having an outer surface, said at least one high-temperature superconducting coil disposed on the outer surface.

[0018] 在各种这样的实施方式中,所述至少一个导热基板的每一个包括至少两个所述超导线圈,所述至少两个所述超导线圈构造成使得邻近的超导线圈(i)关于导电方面是分开的而且(ii)沿着圆柱形形状的导热基板的轴向方向移位并交迭。 [0018] In various such embodiments, each of the at least one thermally conductive substrate comprises at least two of the superconducting coil, the at least two superconducting coils configured such that the adjacent superconducting coils ( i) on the conductive area is separated and (ii) displaced in the axial direction of the cylindrical shape of the thermally conductive substrate and overlapping. 在一些这样的实施方式中,导热部件可以是大致平坦的并且RF线圈阵列包括两个大致圆柱形导热基板,每个导热基板具有热耦合到所述导热部件的公共表面的一个轴端,其中导热基板的尺寸和它们的间隔被构造成提供RF线圈阵列作为胸部成像专用RF线圈阵列。 In some such embodiments, the thermally conductive member may be substantially planar and the RF coil array comprises two substantially cylindrical metal substrate, each having a thermally conductive substrate thermally coupled to the thermally conductive member is a common axial end surface, wherein the thermally conductive size of the substrate and their intervals to provide an RF coil array configured as a dedicated breast imaging RF coil array.

[0019] 在其它各种这样的实施方式中,导热基板可包括至少两个所述超导线圈,所述至少两个所述超导线圈构造成使得邻近的超导线圈(i)关于导电方面是分开的而且(ii)绕圆柱形形状的导热基板的周向方向移位并交迭。 [0019] In various other such embodiments, the thermally conductive substrate may comprise at least two of the superconducting coil, the at least two superconducting coils configured such that the adjacent superconducting coils (i) on the conductive aspects are separated and circumferential (ii) a thermally conductive substrate around a cylindrical shape in the direction shifted and overlapped. 所述周向移位并交迭的超导线圈的数量可以是,例如,至少四个。 The number of shifted and overlapped circumferentially superconducting coil may be, for example, at least four.

[0020] 在一些实施例中,多个线圈元件的每一个可包括高温超导线圈,导热部件可构造成具有外表面的大致圆柱形结构,所述高温超导线圈设置在所述外表面上,从而邻近的超导线圈(i)关于导电方面是分开的而且(ii)绕圆柱形形状的导热部件的周向方向移位并交迭。 [0020] In some embodiments, may each comprise a high temperature superconducting coil, the thermally conductive member may be configured into a generally cylindrical configuration having an outer surface, the high temperature superconducting coil is disposed on the outer surface of the plurality of coil elements thereby adjacent the superconducting coils (i) on the conductive area is separated and (ii) a cylindrical shape around the thermally conductive member in the circumferential direction, and shifted to overlap.

[0021] 在各种实施例中,至少一个线圈元件可构造成多重共振射频线圈元件,其可操作为在相同磁场下接收对应不同磁共振频率的信号。 [0021] In various embodiments, the at least one coil element may be configured as a multi-resonant RF coil element signal, which is operable to receive a magnetic resonance frequency corresponding to different under the same magnetic field.

[0022] 本领域技术人员应该认识到,以上简要描述和以下详细描述是本发明的示例和解释,而并非要限制本发明或限制本发明可以实现的优点。 [0022] Those skilled in the art will be appreciated, the foregoing brief description and the following detailed description are exemplary and explanatory of the present invention and are not intended to limit the invention or limit the advantages of the invention may be implemented. 此外,可以理解,本发明的前述概要代表本发明的一些实施例,而不表示或包括本发明范围内的所有主题和实施例。 Further, to be understood that the foregoing summary of the invention represent some embodiments of the present invention, do not represent or include all subject matter within the scope of the present invention and embodiments. 因此,这里引用并构成其一部分的附图图解示出本发明的实施例,并与详细描述一起,用来解释本发明的实施例的原理。 Accordingly, reference herein and form a part of the accompanying drawings which diagrammatically shows an embodiment of the present invention and, together with the detailed description, serve to explain embodiments of the principles of the present invention. 通过结合附图进行的以下描述来考虑本发明,本发明实施例的方面、特征和优点将在结构和操作上得到理解并变得更加显而易见,其中,贯穿各个附图,相似的附图标记指代相同或相似的部分。 Present invention by consideration of the following description in conjunction with the accompanying drawings, embodiments of the present invention aspects, features and advantages will be understood in the structure and operation become more apparent, and wherein, throughout the various figures, like reference numerals refer to to the same or like parts.

附图说明 BRIEF DESCRIPTION

[0023] 通过结合附图进行的以下描述来考虑本发明,本发明实施例的方面、特征和优点将在结构和操作上得以理解并变得更加显而易见,其中,在各个附图中,从始至终,相似的附图标记指代相同或相似的部分,附图中: [0023] The present invention is considered in the following description in conjunction with the accompanying drawings, an embodiment of the present invention, aspects, features and advantages will be appreciated and become more apparent in structure and operation, wherein, in the various figures, starting from eventually, like reference numerals refer to the same or like parts, the accompanying drawings in which:

[0024] 图IA和IB分别示意性示出根据本发明的一些实施例的包括大致圆形线圈的示意性超导RF线圈阵列的俯视图和侧视图; [0024] FIGS. IA and IB schematically show some schematic plan view and a side view of a superconducting coil, a generally circular array of RF coils according to the present embodiment of the invention;

[0025] 图2A和2B分别示意性示出根据本发明的一些实施例的包括大致矩形线圈的示意性超导RF线圈阵列的俯视图和侧视图; [0025] Figures 2A and 2B schematically show some schematic top plan view and a side view of a superconducting coil is generally rectangular RF coil array according to the present embodiment of the invention;

[0026] 图3A、3B和3C分别示意性示出根据本发明的一些实施例的交迭的线圈元件的二维阵列的顶视图、侧视图和斜视图; [0026] FIGS. 3A, 3B and 3C schematically shows a top view of a two-dimensional array of coil elements overlap to an embodiment of the present invention according to some, side and perspective view;

[0027] 图4A和4B分别示意性示出根据本发明的一些实施例的为线圈使用高温超导体(HTS)带的示意性超导RF线圈阵列的俯视图和横截面侧视图; [0027] FIGS 4A and 4B schematically illustrates an embodiment in accordance with some embodiments of the present invention is a high temperature superconductor coil (HTS) a schematic cross-sectional side plan view of the superconducting RF coil array and the band;

[0028] 图5A和5B分别示意性示出根据本发明的一些实施例的构造成在水平主磁场中用于胸部成像的示意性超导RF线圈阵列的俯视图和侧视图; [0028] Figures 5A and 5B schematically shows a top plan view and a schematic side view of the superconducting RF coil array for breast imaging in the horizontal main magnetic field configuration according to some embodiments of the present invention to;

[0029] 图6A和6B分别示意性示出根据本发明的一些实施例的构造成在竖直主磁场中用于胸部成像的示意性超导RF线圈阵列的俯视图和侧视图; [0029] FIGS. 6A and 6B schematically shows a top plan view and a schematic side view of the superconducting RF coil array for breast imaging in the vertical main magnetic field configuration according to some embodiments of the present invention to;

[0030] 图7A和7B分别示意性示出根据本发明的一些实施例的构造成在竖直主磁场中用于胸部成像的示意性超导RF线圈阵列的俯视图和侧视图; [0030] FIGS. 7A and 7B schematically illustrates a top plan view and a schematic side view of the superconducting RF coil array for breast imaging in the vertical main magnetic field configuration according to some embodiments of the present invention to;

[0031] 图8A和SB示意性示出根据本发明的一些实施例的HTS带线圈阵列,所述线圈阵列包括大致圆筒形导热支撑件和周向设置的交迭HTS线圈;及 [0031] FIGS. 8A and SB schematically illustrates a HTS tape coil array in accordance with some embodiments of the present invention, the overlapping HTS coil array comprises a substantially cylindrical heat-conducting coil support member and disposed in the circumferential direction; and

[0032] 图9A和9A示出与根据本发明的一些实施例的一个HTS线圈(图9B)和五个交迭的HTS线圈的线性阵列相关联的RF信号轮廓的模拟结果。 [0032] FIGS. 9A and 9A shows the simulation result according to the RF signal profile of a linear array of a number of HTS coils HTS coil (FIG. 9B) of the embodiment of the present invention and five overlapping associated.

具体实施方式 detailed description

[0033] 以下的描述公开了低温冷却超导RF线圈阵列的各个实施例,所述线圈阵列可用在全身MRI扫描器中及/或用在专用MRI系统(例如头部专用、肢体专用、儿科专用、脊柱专用等)中。 [0033] The following description discloses a cryogenically cooled superconducting RF coil array in various embodiments, the coil array may be used in whole-body MRI scanner and / or MRI system for use in private (e.g. dedicated head, limb special, dedicated Pediatrics , dedicated spine, etc.). 如从下面的描述中能进一步理解的那样,本发明的实施例包括线圈面阵和体积阵设计,并且在各种实施方式中,两个或更多诸如此处描述的实施例(及其变型)的超导线圈阵列模块(例如,两个或更多大致平面线圈阵列模块,诸如一维或二维表面线圈阵列模块)可以一起使用(例如,通过独立定位它们及/或将它们安装成相对于彼此有固定的空间关系,诸如通过将它们机械联接,无论是直接相互联接或者是经由一个或更多介于其间的支撑结构),以实质上形成更大的阵列。 As can be further understood from the following description, embodiments of the present invention includes a coil array area array design and volume, and, in various embodiments, two or more embodiments as described herein (and variations thereof ) superconducting coil array modules (e.g., two or more substantially planar coil array module, such as a one or two dimensional array of surface coils module) can be used together (e.g., by positioning independent thereof and / or they are mounted to opposite in a fixed spatial relationship to each other, such as by coupling them mechanically, either directly coupled to each other or one or more of the supporting structure interposed therebetween) to substantially form a larger array via. 例如,两个或更多超导表面线圈阵列模块可以构造成围绕肢端(例如,大腿、头等)或者躯干(例如,为了心脏成像),以提供在期望感兴趣区域(ROI)上的成像(例如期望的视野(FOV))。 For example, two or more surfaces of the superconducting coil array module may be configured to surround the extremities (e.g., leg, top), or the torso (e.g., for cardiac imaging), to provide the desired image on the region of interest (the ROI) ( for example, a desired field of view (FOV)).

[0034] 如从下面的描述中同样能进一步理解的那样,具有特定总体几何形状(例如,大致平面的(例如线性)一维或二维阵列,大致圆筒形阵列等等)的每个超导线圈阵列实施例,可根据各种实施例构造而用于各种应用,诸如用于全身成像、头部专用成像、四肢专用成像、儿科专用成像等等。 Each Super [0034] The same can be further understood from the following description, having a specific overall geometry (e.g., substantially flat (e.g. linear) one or two dimensional array of substantially cylindrical array and the like) conducting coil array embodiments, it may be constructed in a variety of applications in accordance with various embodiments, such as for whole body imaging, special imaging head, limbs dedicated imaging, special pediatric imaging and the like.

[0035] 然而,根据线圈阵列可能适用或意图使用的应用,给定的一般总体几何形状的线圈阵列的特定设计参数可以改变。 [0035] However, depending on the application or intended coil array may be suitable for use, to specific design parameters of a given coil array general overall geometry may vary. 这些设计参数可包括例如,总体几何形状构造的尺寸、尺寸及/或几何形状(例如,圆形、方形、六边形等等)及/或在阵列中的线圈元件的数量等等。 These design parameters can include, for example, the overall shape geometry configuration, size and / or geometry (e.g., circular, square, hexagonal, etc.) and / or the number of coil elements in the array, and the like. 作为例子,大致圆筒形内管阵列几何形状可适用于全身成像、头部专用成像以及胸部专用成像;然而,如果特别想要阵列用于这些应用中的一个,那么可以相应地确定它的设计参数(例如,圆筒形状的长度和半径、线圈元件的数量和尺寸、线圈元件的类型、线圈元件关于一般地圆筒形几何形状的空间布置等等)。 By way of example, a substantially cylindrical inner tube array geometry may be applied to the image forming body, the head and chest imaging dedicated special image; however, if a particularly desirable for the array of these applications, it can be determined accordingly its design parameters (e.g., number and size of the length and radius of the cylindrical shape, the coil element, the type of coil elements on a coil element is generally cylindrical geometry of the spatial arrangement and the like). 在圆筒形几何形状(仅作为例子)的背景中,想用于头部专用应用的圆筒形阵列可布置成使得圆筒形结构在两端敞开,而对于胸部专用应用来说,圆筒形结构的一端可以封闭(例如,允许低温冷却机设置在封闭端附近)。 BACKGROUND cylindrical geometry (example only), a cylindrical array like a dedicated application head may be arranged such that the cylindrical structure open at both ends, while specific applications to the breast, the cylindrical shaped structure may be closed at one end (e.g., allowing cryocooler is provided in the vicinity of the closed end).

[0036] 类似地,从下面的描述中本领域技术人员应该理解,根据本发明的实施例的超导线圈阵列的各种设计参数和特殊结构也可以根据线圈将用在其中的整体磁共振系统(例如,MR系统的尺寸、敞开、关闭、可用的RF通道的数量等等)而改变。 [0036] Similarly, from the following description understood by those skilled in the art should, in accordance with various design parameters of the superconducting coil array embodiment of the present invention and the particular structure may be used in which the coil of the magnetic resonance system overall (e.g., the size of the MR system, open, close, the number of available RF channels and the like) is changed.

[0037] 另外,根据以下描述,本领域技术人员可以进一步理解,根据本发明各个实施例的低温冷却超导RF线圈阵列线圈可以在许多种磁共振成像和光谱系统中实现,如采用传统铜梯度线圈的系统、采用超导梯度线圈的系统(例如2009年4月I日提交的美国专利申请No. 12/416,606以及2009年4月17日提交的美国临时申请No. 61/170,135中公开的系统,其每一个通过引用并入此处)、全身系统、头部专用系统、具有垂直或水平朝向的主磁场的系统、开放或封闭系统等等。 [0037] Further, according to the following description, those skilled in the art will be further understood, cooling can be achieved in low temperature superconducting coil RF coil array with various embodiments of the present invention in a wide variety of magnetic resonance imaging and spectroscopy systems, such as the traditional copper gradient coil system, the system using the superconducting gradient coils (e.g., U.S. Patent April 2009 I filed No. 12 / 416,606 and U.S. provisional application 17 April 2009, filed No. 61 / 170,135 discloses the system, each of which is incorporated herein by reference), systemic, head dedicated system, system main magnetic field having a vertical or horizontal orientation, open or closed systems. 类似地,本领域技术人员还可以理解,尽管可以在可以用于样品(例如,个体例如患者,动物例如狗或老鼠、组织样品、或其他有生命或无生命的对象)的结构检查的MRI系统的上下文中阐述以下描述的各个部分,但是本发明的各个实施例也可以与操作和/或配置为其他形态的磁共振(MR)系统相结合来使用,所述其它形态如功能性MRI、扩散加权和/或扩散张量MRI、MR光谱和/或光谱成像等等。 Similarly, those skilled in the art can also be appreciated that although the structure of the inspection sample can be used (e.g., an individual such as a patient, an animal such as a dog or rat, tissue sample, or other living or non-living objects) of the MRI system It sets forth the context of the following description of the various parts, but the various embodiments of the present invention may be other forms of magnetic resonance (MR) system in conjunction with the operation and / or configuration used, the other shape such as functional MRI, diffusion weighting and / or diffusion tensor MRI, MR spectroscopy, and / or spectral imaging and the like. 此外,如在这里使用,MRI包括并涵盖磁共振光谱成像、扩散张量成像(DTI)以及基于核磁共振的任何其他成像形态。 Further, as used herein, MRI and comprising a cover magnetic resonance spectroscopy imaging, diffusion tensor imaging (DTI) and on any other imaging modality is NMR.

[0038] 从下面的描述中,本领域技术人员也可以理解,根据本发明实施例的超导线圈阵列可以构造成或适用于仅接收、或仅发送、或发送和接收。 [0038] from the following description, one skilled in the art will also be appreciated, the array may be configured in accordance with an embodiment of the superconducting coil of the present invention or adapted to receive only or transmit only, or transmitting and receiving.

[0039] 图IA和IB分别示意性示出根据本发明的一些实施例的说明性超导RF线圈阵列10的俯视图(为了清楚起见示出下方特征的轮廓)和侧视图。 [0039] FIGS. IA and IB schematically shows (for clarity the outline feature shown below) is a plan view and a side view in accordance with some illustrative embodiments of the superconducting RF coil array 10 of the embodiment of the present invention. 更准确地说,图IA和IB示出布置成两层以提供线性阵列的超导RF线圈元件14a_14e (此处也被称为线圈14a_14e并被集体称为为超导RF线圈元件14或线圈14)配置。 More specifically, FIG. IA and IB show the arrangement in two layers to provide a linear array element 14a_14e superconducting RF coil (also referred to herein collectively referred to as coil 14a_14e and the superconducting RF coil element 14 or coil 14 ) configuration.

[0040] 如所示,线圈元件14a、14c和14e (为了方便起见被集体称为“下线圈元件”)每一个设置成直接热接触导热基板(板)12,线圈元件14b和14d(为了方便起见被集体称为“上线圈元件”)设置在下线圈元件的上方,并分别经由支座16a和16b (集体称为支座16)热耦合到下线圈元件和耦合到板12。 [0040] As shown, the coil elements 14a, 14c and 14e (collectively referred to for convenience "lower coil element") are each provided in direct thermal contact with the thermally conductive substrate (board) 12, the coil member 14b and 14d (for convenience reasons are collectively referred to as "coil element") arranged above the lower coil elements, respectively, via bearings 16a and 16b (collectively referred to as a seat 16) thermally coupled to the lower coil member 12 coupled to the plate. 环氧及/或热油脂/化合物(未示出)可设置在线圈14和板12及或支座16之间以在它们之间提供热及机械接触。 Epoxy and / or thermal grease / compound (not shown) may be disposed therebetween to provide thermal and mechanical contact between the coils 12 and 16 or 14 and the support plate.

[0041] 导热板12和每个导热支座16可以由例如任何一种或多种高导热率的材料(诸如蓝宝石或矾土),或者其它非金属的高导热率材料(诸如高导热率陶瓷)形成。 [0041] The heat conducting plate 12 and each of the thermally conductive holder 16 may be made of a material such as any one or more of a high thermal conductivity (such as Lan Baoshi or alumina), or other non-metallic high thermal conductivity material (such as a high thermal conductivity ceramic )form. 如下面进一步描述的那样,导热板12被热耦合(此处未示出)到低温冷却系统,超导线圈阵列10被装在壳体内,所述壳体保持阵列10在真空(例如,至少低真空)内。 As described further below, the heat-conducting plate 12 is thermally coupled (not shown here) to a cryogenic cooling system, the superconducting coil array 10 is mounted within a housing 10 holding the array in a vacuum (e.g., at least a low vacuum) inside. 在各种替代实施例中,导热板12可以比线圈元件的直径窄,在一些实施例中,板12可以实施为两个分开的、平行的细长部件,每个细长部件接触线圈元件14a、14c、14e的背侧部分。 In various alternative embodiments, the thermally conductive plate 12 may be narrower than the diameter of the coil element, in some embodiments, the plate 12 may be implemented as two separate, parallel elongate members, each elongate member contacting the coil element 14a the dorsal part 14c, 14e of.

[0042] 在图IA和IB中,每个线圈元件14包括基板15 (例如,蓝宝石晶片)和薄膜超导线圈17 (也被称为轨迹17)。 [0042] In FIGS. IA and IB, each coil element 14 comprises a substrate 15 (e.g., Lan Baoshi wafer), and the superconducting thin film coil 17 (also referred to as the track 17). 在图IA和IB的实施例中,薄膜轨迹17形成在基板15的上表面(背离所述板12),虽然在替代实施例中,轨迹可以设置在基板15 的下表面上(面对所述板12)。 In the embodiment of FIGS. IA and IB, the film track 17 formed on the surface of the substrate 15 (away from the plate 12), while in alternative embodiments, the track may be provided on the lower surface of the substrate 15 (the face plate 12).

[0043] 尤其是,根据本发明的一些实施例,每个RF线圈元件14a_14e的轨迹17可以实施为高温超导体(HTS),诸如YBCO及/或BSCCO等等(例如,使用HTS薄膜或HTS带),但是在各种实施例中也可以使用低温超导体(LTS)。 [0043] In particular, according to some embodiments of the present invention, the trajectory of each RF coil element 14a_14e 17 may be implemented as a high temperature superconductor (HTS), such as YBCO, and / or the like BSCCO (e.g., using HTS tape or film HTS) , may be used in various embodiments, low temperature superconductor (LTS). 例如,在一些实施例中,每个RF线圈元件14a-14e是在基板(诸如蓝宝石或铝酸镧)上的HTS薄膜螺旋线圈及/或HTS薄膜互相交叉螺旋线圈。 For example, in some embodiments, each RF coil elements 14a-14e are helical coil HTS film and / or the HTS film on the substrate (such as a lanthanum aluminate or Lan Baoshi) interdigitated spiral coils. 考虑到例如Ma等人的在Academic Radiology的2003年9月的卷10 序号9,页码978-987 的文章“Superconducting RF Coils for Clinicla MRImaging at Low Field”,Gao 等人在ISMRM-2003 序号1412 上的文章“Simulation of theSensitivity of HTS Coil and Coil Array for Head Imaging,,, Fang等人在IEEE Trans在Applied Superconductivity 的卷12 序号2 页码1823-1827(2002)上的“Design ofSuperconducting MRI Surface Coil by Using Method of Moment”,以及Miller 等人在Magnetic Resonance in Medicine, 41 :72-29 (1999)上的文章“Performance of a HighTemperature Superconducting Probe fro In Vivo Microscopy at 2. 0T,,(上述每篇文章通过参考以其全部合并于此),这种线圈的设计和制造在上述文章中被进一步描述及/或可以从上述文章中得到进一步的理解。 Consider for example the September 2003 Volume 10 No. 9 in Academic Radiology of Ma et al., Pages 978-987 article "Superconducting RF Coils for Clinicla MRImaging at Low Field", Gao et al on ISMRM-2003 No. 1412 article "Simulation of theSensitivity of HTS coil and coil Array for Head Imaging ,,, Fang et al., IEEE Trans on Applied Superconductivity volume 12 number 2 yards 1823-1827 (2002) of" Design ofSuperconducting MRI Surface coil by Using Method of Moment ", and Miller et al. in Magnetic Resonance in Medicine, 41: 72-29 on the article (1999)" Performance of a HighTemperature Superconducting Probe fro in Vivo Microscopy at 2. 0T ,, (each of the above article by reference in its fully incorporated herein), the design and manufacture of such a coil are further described and / or may be further understood from the above article in the above article. 因此,在一些实施例中,超导RF线圈阵列10实施为HTS薄膜RF线圈阵列。 Thus, in some embodiments, the superconducting RF coil array 10 is implemented as a thin film HTS RF coil array.

[0044] 每个线圈元件的设计(例如轨迹直径、圈的数量)可以取决于应用,并且可包括对同质性、信噪比、视场(FOV)的考虑。 [0044] The design (e.g. track diameter, number of turns) of each coil element may depend on the application, and may include homogeneity, signal to noise ratio, the field of view (FOV) considered pair. 类似的考虑可以作为确定将被使用的线圈元件的数量(例如尽管在图IA和IB中的实施例中示出五个线圈元件,线性阵列可包括更少或更多的线圈元件)的因素。 Similar considerations may be used as the coil element to be used to determine the number (e.g., although the embodiments in FIGS. IA and IB of five coil elements are shown, a linear array may include fewer or more coil elements) factors. 如图IA和IB中所示,相邻线圈元件14的轨迹17交迭,这种交迭是通过让相邻线圈元件垂直移位而产生的。 As shown in FIG. IA and IB, the track member 14 adjacent the coil 17 overlap, so that adjacent coils overlap by the vertical shift element generated. 本领域技术人员应该理解,在相邻线圈之间的交迭量可以关于退耦被最优化。 Those skilled in the art will appreciate, the amount of overlap between adjacent coils can be optimized on decoupling.

[0045] 如显示出的那样,支座16可帮助导热(例如,在上线圈和板12之间导热)以及帮助机械支撑(例如,帮助支撑上线圈)。 [0045] As show above, the thermally conductive holder 16 may be help (e.g., between the coil and the heat conductive plate 12) and assist mechanical support (e.g., to help support the coil). 使用设置在下线圈元件的轨迹上方的支座16a可有助于防止如果上线圈元件直接接触下线圈元件的情况下可能对这些轨迹产生的损害。 Use holder 16a provided above the lower track coil elements may help prevent damage to the coil case if the element in direct contact with the coil element may be produced on the tracks. 在不同实施例中,支座16a可包括狭窄的凹入区域,所述凹入区域设置在下线圈元件的下方轨迹上方从而下轨迹不被上方的支座16a机械接触到。 In various embodiments, the carrier 16a may comprise a narrow recessed area, the recessed area of ​​the lower coil disposed below the track so that the track above element is not above the abutments 16a mechanical contact.

[0046] 应该理解,在各种替代实施例中,可以省去一个或更多(例如所有)支座16。 [0046] It should be appreciated that, in various alternative embodiments, the omitted one or more (e.g. all) of the support 16. 例如,一些实施例可包括在下和上线圈元件之间的支座16a,但是不在板12和上线圈元件14b、14d之间使用支座16b,因为线圈元件间支座16a可提供充分导热以冷却上线圈元件。 For example, some embodiments may comprise abutment 16a between the lower and upper coil member, but not on the plate 12 and the coil elements 14b, 16b between the support using 14d, since the abutment between the coil elements 16a may provide sufficient thermal conductivity to cool the coil element. 另外地或替代地,不同实施例可包括额外的与上线圈元件14b和14d直接接触的高导热板。 Additionally or alternatively, different embodiments may include additional coil element 14b and the high thermal conductivity in direct contact with the plate 14d. [0047] 作为非限制性的例子,为了说明的目的,在一些实施例中,板12可具有大约3-5_的厚度,每个线圈元件轨迹17可具有大约Icm到IOcm或更大的直径,每个线圈元件基板15可具有大约0. 3mm到0. 6mm的厚度,而支座16a可具有大约0. Imm到0. 5mm的厚度。 [0047] By way of non-limiting example, for purposes of illustration, in some embodiments, the plate 12 may have a thickness of about 3-5_ of each coil track element 17 may have a diameter of approximately Icm to or greater IOcm each coil element substrate 15 may have a thickness of about 0. 6mm to 0. 3mm, and the support 16a may have a thickness of about 0. 5mm to 0. Imm of.

[0048] 尽管未在图IA和IB中示出,用于每个线圈元件的电子模块可设置在板12及/或基板15上,并且可包括至少前置放大器,也可以包括额外的电路,例如用于阻抗匹配、退耦 [0048] Although not shown in FIGS. IA and IB, the electronic module may be used for each coil element is disposed on the plate 12 and / or the substrate 15, and may comprise at least a preamplifier, it may also include additional circuitry, for example for impedance matching, decoupling

坐坐寸寸o O begins to sit

[0049] 如上面所示,图IA和IB中示出的超导RF线圈阵列10设置在真空室中并且被与低温冷却系统热耦合的板12冷却。 [0049] As shown in FIGS. IA and IB in a vacuum chamber and coupled to the cryogenic cooling system thermal superconducting RF coil array 10 is shown disposed above the cooling plate 12. 在不同实施例中,线圈元件14a_14e可以被冷却到大约4k到IOOk的温度范围,尤其是,冷却到低于超导材料的临界温度的温度(例如,在一些实施例中,低于用于RF线圈17的高温超导体(HTS)材料的临界温度)。 In various embodiments, the coil element may be 14a_14e cooled to a temperature range of about 4k to IOOk, especially, cooled to a temperature below the critical temperature of the superconducting material (e.g., in some embodiments, less than for RF the critical temperature of the coil 17 of high temperature superconductor (HTS) materials). 在不同实施例中,低温冷却系统可包括以各种单级或多级低温冷却机实现的低温冷却机,诸如Gifford McMahon (GM)低温冷却机、脉冲管(PT)冷却机、Joule-Thomson(JT)冷却机、Stirling冷却机或其他低温冷却机。 In various embodiments, the cryogenic cooling system may include a low temperature cooling in various single or multistage cryocooler implemented, such as Gifford McMahon (GM) cryocooler, a pulse tube (PT) cooler, Joule-Thomson ( JT) cooling machine, Stirling cooler or other low temperature cooling. 在不同备选实施例中,超导RF线圈阵列10可以被配置用于冷却,使得利用致冷剂(诸如液氦和液氮)来冷却线圈17。 In various alternative embodiments, the superconducting RF coil array 10 may be configured to cool, by using such a refrigerant (such as helium and nitrogen) to cool the coil 17.

[0050] 尽管未在此处示出,真空室可以实现为例如双壁Dewar结构。 [0050] Although not shown here, the vacuum chamber may be implemented, for example, a double-walled structure Dewar. 尤其是,根据本发明的一些实施例,真空室可包括由玻璃及/或其它非传导性的且机械上牢固的材料(诸如G10、RF4、塑料及/或陶瓷)制成的双壁Dewar结构。 In particular, according to some embodiments, the vacuum chamber of the present invention may comprise glass and / or other non-conductive and mechanically strong material (such as G10, RF4, plastic and / or ceramic) of the double-walled structure Dewar . 在不同实施例中,双壁Dewar结构可以实施为依照或类似于在2008年9月17日提到的序号为12/212,122的美国申请、2008年9月17日提交的序号为12/212,147的美国临时申请、2009年4月20日提交的序号为61/171,074的美国临时申请中描述的封闭密封的双壁结构(及真空热绝缘壳体),上述各申请通过引用以其全部合并于此。 In various embodiments, may be implemented as double-walled structure in accordance Dewar or similar serial September 17, 2008 referred to U.S. Application 12 / 212,122, and Serial No., filed September 17, 2008 12 / of U.S. provisional application 212,147, No. 20 April 2009 filed sealed closed double wall structure (and the vacuum thermal insulating housing) U.S. provisional application No. 61 / 171,074 described in the above incorporated by reference in their respective all of which are incorporated herein. 尽管下面未详细讨论,应该理解,下面给出的实施例也可以在真空室内实施并且被热耦合以用于低温冷却。 Although not discussed in detail below, it should be understood that the embodiments given below may be implemented in a vacuum chamber and is thermally coupled to a cryogenic cooling.

[0051] 应该理解,两个或更多诸如或依照图IA和IB中所示的线性阵列的线性阵列可以结合以提供二维或三维阵列组件。 [0051] It should be understood that two or more, such as a linear array or a linear array in accordance with FIG IA and IB may be combined to provide a two or three dimensional array assembly. 例如,在一些实施例中,八个线性阵列(例如,每个阵列具有两个或更多线性布置的线圈元件)可以组装成大致圆柱形的、八边形布置,其中每个线性阵列纵向延伸并且在方位角上移位大约45度。 For example, in some embodiments, a linear array of eight (e.g., each array having a linear arrangement of two or more coil elements) can be assembled into a generally cylindrical, octagonal arrangement, wherein each longitudinally extending linear array and shifted about 45 degrees in azimuth. 这种配置可以以类似于在2009年4月20日提交的序号为61/171,074的美国临时申请中公开的超导体RF头线圈阵列的实施例的方式实现,上述临时申请通过参考以其全部合并于此。 This configuration can by way of example of the superconductor RF head coil array similar to that disclosed in U.S. Provisional Application Serial No. 20 April 2009, filed 61 / 171,074 realized in the provisional application by reference in its entirety incorporated herein.

[0052] 考虑到上面的描述,可以理解,根据本发明的各种实施例,超导RF线圈阵列10可以实施为仅接收阵列,其中RF发送器实施为单独的RF线圈(未示出),在各种实施例中该RF线圈可以是常规(例如,非超导的,诸如常规铜RF线圈)RF发送器线圈或者超导RF发送线圈。 [0052] Considering the above description it can be appreciated that, in accordance with various embodiments of the present invention, the superconducting RF coil array 10 may be implemented to receive only array, wherein the RF transmitter embodiment as a separate RF coil (not shown), in various embodiments, the RF coil may be conventional (e.g., non-superconducting, such as a conventional copper coil RF) RF transmitter coil or coils of the superconducting RF transmission. 在一些实施例中,超导RF线圈阵列10可以实施为发送和接收线圈阵列(收发器阵列),其中每个超导RF线圈元件14既用于发送也用于接收RF信号。 In some embodiments, the superconducting RF coil array 10 may be implemented to transmit and receive coil array (transceiver array), wherein each superconducting RF coil for both transmitting element 14 is also for receiving RF signals.

[0053] 根据本发明的各种实施例,超导RF线圈元件14的一个或多个可以实施为多重共振RF线圈元件(例如,包括具有不同共振频率的两个或更多接收线圈,诸如用于在给定磁场(例如,在3特斯拉(T))中探测钠和氢共振)。 [0053] According to various embodiments of the present invention, a superconducting RF coil element 14 may be implemented as one or more multi-resonance RF coil elements (e.g., including two or more receiving coils with different resonance frequencies, such as with in a given field (e.g., at 3 Tesla (T)) detected in the sodium and hydrogen resonance).

[0054] 现在参考图2A和2B,示出的分别是根据本发明一些实施例的示意性超导RF线圈阵列20的俯视图(为了清楚起见示出下方特征的轮廓)和侧视图。 [0054] Referring now to FIGS. 2A and 2B, illustrated are a schematic plan view in accordance with some exemplary superconducting RF coil array 20 of the embodiment of the present invention (shown for clarity of outline features below) and a side view. 更准确地说,图2A和2B示出这样的配置:五个超导RF线圈元件24a-24e (此处被集体称为超导体RF线圈元件24或线圈24)布置成两层以提供线性阵列(类似于图IA和IB的线性阵列),其形成在导热板22上。 More specifically, FIGS. 2A and 2B show a configuration in: five superconducting RF coil element 24a-24e (collectively referred to herein superconductor element RF coil 24 or coil 24) are arranged in a linear array to provide two layers ( similar to the linear array of FIGS. IA and IB), which is formed on the heat conducting plate 22. 与图IA和IB的线性阵列相比,图2A和2B的线性阵列包括大致矩形的(薄膜HTS)轨迹27和大致矩形的基板25。 FIGS. IA and substrate compared with the linear array of IB, 2A and 2B comprises a linear array of substantially rectangular shape (thin film HTS) tracks 27 and 25 is substantially rectangular. 矩形基板25可通过切割或切划圆形基板(诸如圆形蓝宝石或矾土基板)来形成。 Rectangular substrate 25 may be formed by dicing or scribing circular substrate (such as a circular Lan Baoshi or alumina substrate). 由于基本恒定的轨迹交迭距离,矩形形状的轨迹可提供改善的图像再现。 Since a substantially constant distance from the track overlap, rectangular locus may provide an improved image reproduction. 矩形线圈元件也比圆形线圈元件更适合形成二维阵列。 Rectangular coil-circular coil elements than a two-dimensional array of elements is more suitable.

[0055]例如,图 3A-3C 示出大致矩形的线圈元件34al、34bl. • • 34el、34a2、34b2. • • 34e2组成的二维(2X5)矩形阵列30,并具有大致矩形的基板和大致矩形的轨迹37,它们使用直接耦合在导热板32和从上面数第二层的线圈元件(包括元件34a2、34c2和34e2)之间的支座元件36而组装成四层,由此提供为从上方数第二层的元件和上覆的最上层的元件(包括元件34b2、34d2)提供导热和机械支撑。 [0055] For example, Figures 3A-3C illustrates a generally rectangular coil elements 34al, 34bl. • • 34el, 34a2,34b2. • • 34e2 consisting of two-dimensional (2X5) 30 rectangular array, and a substrate having a substantially rectangular shape and a substantially rectangular track 37, which is coupled in direct heat conducting plate 32 and the seat member between the coil elements of the second layer from the top number (including element 34a2,34c2 and 34e2) 36 are assembled into four, thereby providing the and the number of elements above the uppermost layer overlying the second member (including a member 34b2,34d2) provide mechanical support and thermal conductivity. 更准确地说,图3A为顶视图(为了清楚起见,示出下方特征的轮廓),图3B为侧视图而图3C为斜视图(为了清楚起见,示出下方特征的轮廓)。 More specifically, FIG. 3A is a top view (for clarity, the outline feature shown below), and FIG. 3B is a side view of FIG. 3C is a perspective view (for clarity, the outline feature shown below). 如所示,每个相邻线圈元件的轨迹37彼此交迭(S卩,线圈元件轨迹与最靠近它的邻居元件和次最接近的邻居元件(即,对角设置的邻居元件)的轨迹交迭)。 As shown, the trajectory of each element 37 overlap adjacent coils (S Jie, the coil member from its nearest neighbor trace elements and sub-elements nearest neighbors (i.e., neighboring elements arranged diagonally) trajectories cross each other Diego). 应该理解,在各种实施方式中,支座盘元件也可以包含在内以直接耦合在特定区域中的最下层的元件(包括元件34al、34cI、34eI)和从上方数第二层的元件(包括元件34a2、34c2和34e2),所述特定区域是最下层元件和上数第二层元件交迭之处。 It should be appreciated that, in various embodiments, the carrier plate element may also be included directly coupled to the lowermost element in a particular area (including elements 34al, 34cI, 34eI) and the number of elements from the second layer over the ( and comprising a member 34a2,34c2 34e2), the specific region is the lowermost element and overlapping the second layer on a logarithmic element. 应该理解,比使用细长的支座元件36更好的,单独的支座盘可以设置在板32和每个线圈元件34a2、34c2和34e2之间。 It should be appreciated that the elongate abutment member than 36 better, a separate support plate may be disposed between the plate 32 and each coil element 34a2,34c2 and 34e2. 本领域技术人员应该理解,图3A-3C的实施例中所示的四层结构可用于提供任意尺寸的交迭的线圈元件的二维阵列(例如,3X5、4X5、4X8、8X8等)。 Those skilled in the art will appreciate, four-layer structure shown in the embodiment of FIGS. 3A-3C may be used to provide a two-dimensional array of overlapping coil elements of any size (e.g., 3X5,4X5,4X8,8X8 etc.).

[0056] 现在参考图4A和图4B,分别示出根据本发明一些实施例的说明性超导RF线圈阵列40的俯视图(为了清楚起见示出下方特征的轮廓)和横截面侧视图,所述线圈阵列40为线圈使用高温超导体(HTS)带。 [0056] Referring now to FIGS. 4A and 4B, respectively show side and cross-sectional (profile features shown for clarity below) in accordance with some illustrative plan view of the superconducting RF coil array 40 of the embodiment of the present invention, the coil array 40 is a coil using a high temperature superconductor (HTS) tape. 如所示,阵列40包括三个线性布置的线圈元件44a、44b、44c,它们交替地设置在导热板42的相对表面上。 As shown, the array 40 comprises three coil elements arranged linearly 44a, 44b, 44c, which are alternately disposed on opposite surfaces of the heat conducting plate 42. 每个线圈元件包括导热(例如矾土)支撑环43、HTS线圈47和电路49。 Each coil comprises a thermally conductive element (e.g. alumina) support ring 43, HTS coils 47 and the circuit 49. 如所示,导热(例如矾土)支撑环43被热耦合到导热(例如矾土或蓝宝石)板42,HTS带47绕矾土支撑环43周向卷绕,并可以通过电路49的附接(例如焊接)而固定在适当位置。 As shown, the thermally conductive (e.g. alumina) support ring 43 is thermally coupled to a thermally conductive (e.g., alumina or Lan Baoshi) plate 42, HTS tape 47 around the alumina support ring 43 circumferentially wound, and can be attached through the circuit 49 (e.g. welding) and fixed in place. 环氧的及/或热油脂也可以用来热耦合和固定所述带47到支撑环43的周向表面。 Epoxy and / or a thermal grease may be thermally coupled to the belt 47 and fixed to the support ring 43 of peripheral surface. 电路49可包括至少前置放大器,也可以包括额外的电路,诸如用于阻抗匹配、退耦等等。 Circuit 49 may comprise at least a preamplifier, it may also include additional circuitry, such as for impedance matching, decoupling and so on. 作为非限制性的例子,为了说明的目的,环43可具有大约2. 5cm到25cm之间或更大的直径,并且可具有大约5mm到25mm的高度(沿圆柱形);HTS带47可具有大约0. Imm到0. 5mm的厚度以及大约5mm到13mm的宽度,并且可卷绕成绕帆土环43的单一环。 As a non-limiting example, for purposes of illustration, the ring 43 may have a diameter of between about 2. 5cm to 25cm or more, and may have a height of about 5mm to 25mm (along the cylindrical); the HTS tape may have about 47 to 0. Imm of 0. the thickness of 5mm and a width of about 5mm to 13mm, and the fan may be wound around the single loop ring 43 soil.

[0057] 现在参考图5A和图5B,分别示出根据本发明的一些实施例的说明性超导RF线圈阵列50的俯视图(为了清楚起见,示出下方特征的轮廓)和侧视图,其中所述超导RF线圈阵列50为线圈使用高温超导体(HTS)带并构造成用于在水平主磁场(即,与大致圆柱形形状的线圈元件的纵轴正交)中对胸部成像。 [0057] Referring now to FIGS. 5A and 5B, a top view, respectively, illustrating a number of illustrative embodiments of the superconducting RF coil array 50 of the present invention (for clarity, shown below wherein the profile) and a side view, wherein said RF coil array of superconducting coils 50 is a high temperature superconductor (HTS) tape and configured for (i.e., the coil elements substantially orthogonal to the longitudinal axis of the cylindrical shape) in the level of the main magnetic field breast imaging. 线圈阵列50的构造与线圈40至少在一定范围内相似,因为线圈元件实施为绕大致圆柱形的导热(例如矾土)支撑环安装的HTS带,其中所述支撑环热耦合到导热板。 Coil array 40 is configured similar to the coil 50 at least within a certain range, since the coil around a substantially cylindrical element is embodied as a thermally conductive (e.g. alumina) support ring mounting of HTS tape, wherein the support ring is thermally coupled to the heat conducting plate. 更准确地说,如所示,阵列50的每个大致圆柱形线圈元件包括导热(例如矾土)支撑环53、HTS线圈57以及电路59。 More specifically, as shown, each of the generally cylindrical coil element array 50 includes a thermally conductive (e.g. alumina) support ring 53, HTS coils 57 and the circuit 59. 如所示,导热(例如矾土)支撑环53被热稱合到导热(例如帆土或蓝宝石)板52,而HTS带57绕帆土支撑环53周向卷绕成线圈配置以用于水平磁场,并可以通过电路59的附接(例如焊接)固定到适当位置。 As shown, the thermally conductive (e.g. alumina) support ring 53 is thermally bonded to said thermally conductive (e.g., Lan Baoshi or sails earth) plate 52, and the HTS tape 57 around the support ring 53 weeks soil sail by winding a coil arranged for horizontal magnetic field, through the circuit 59 and the attachment (e.g. welding) to the appropriate position. 环氧的及/或热油脂也可以用来热耦合和固定所述带57到支撑环53的周向表面。 Epoxy and / or a thermal grease may be thermally coupled to the belt 57 and fixed to the support ring 53 of peripheral surface. 电路59可包括至少前置放大器,并可包括额外的电路,诸如用于阻抗匹配、退耦等等。 Circuitry 59 may include at least a preamplifier, and may include additional circuitry, such as for impedance matching, decoupling and so on. 作为非限制性的例子,为了说明的目的,环43可具有大约15cm到25cm或更大的直径,并可具有大约15cm到25cm或更大的高度(沿圆柱形的轴线)。 As a non-limiting example, for purposes of illustration, the ring 43 may have a diameter of about 15cm to 25cm or more, and may have a height of approximately 15cm to 25cm or more (cylindrical axial).

[0058] 现在参考图6A和图6B,分别示出根据本发明一些实施例的说明性的超导RF线圈阵列60的俯视图(为了清楚起见,示出下方特征的轮廓)和侧视图,其中所述线圈阵列60为线圈使用高温超导体(HTS)带并且构造成在竖直主磁场(即,平行于大致圆柱形形状的线圈元件的纵轴)中对胸部成像。 [0058] Referring now to FIGS. 6A and 6B, the respectively show a top view of a superconducting RF coil array 60 is an illustrative embodiment of the present invention, some embodiments (for clarity, shown below wherein the profile) and a side view, wherein a coil of said coil array 60 using high temperature superconductor (HTS) tape and configured for breast imaging in a main magnetic field vertically (i.e., parallel to the coil member of a substantially cylindrical shape the longitudinal axis) of. 如所示,每个大致圆柱形线圈元件的阵列60包括导热(例如矾土)支撑环63、HTS线圈67和电路69,所述导热(例如矾土)支撑环63热耦合到导热(例如矾土或蓝宝石)板62。 As shown, each array 60 includes a substantially cylindrical heat-conducting coil elements (e.g. alumina) support ring 63, the HTS circuit 69 and the coil 67, the thermally conductive (e.g. alumina) support ring 63 is thermally coupled to a thermally conductive (e.g. alum Lan Baoshi or earth) plate 62. 线圈阵列60的构造与线圈阵列50相似;然而,HTS线圈67被缠绕成适合用在竖直场中的配置(例如,鞍形线圈配置)。 50 is similar to the configuration of the coil array coil array 60; however, the HTS coil 67 is wound in a configuration suitable for use in vertical field (e.g., saddle coil configuration).

[0059] 现在参考图7A和图7B,分别示出根据本发明一些实施例的说明性超导RF线圈阵列70的俯视图(为了清楚起见示出下方特征的轮廓)和侧视图,其中所述线圈阵列70为线圈使用高温超导体(HTS)带并构造成在竖直主磁场(即,平行于大致圆柱形形状的线圈·元件的纵轴)中对胸部成像。 [0059] Referring now to FIGS. 7A and 7B, respectively show a number of illustrative embodiments of the superconducting RF coil array 70 is a plan view of the present invention (shown for clarity outline feature below) and a side view, wherein the coils coil array 70 is a high temperature superconductor (HTS) tape and configured for breast imaging to a main magnetic field in the vertical (i.e., parallel to a substantially cylindrical shape the longitudinal axis of the coil-element) in. 如所示,阵列70的每个大致圆柱形线圈元件包括导热(例如矾土)支撑环73、HTS带77以及电路79,导热(例如矾土)支撑环73热耦合到导热(例如矾土或蓝宝石)板72。 As shown, each of the generally cylindrical coil array 70 includes a thermally conductive element (e.g. alumina) support rings 73, 77 and with the HTS circuit 79, a thermally conductive (e.g. alumina) support ring 73 is thermally coupled to a thermally conductive (e.g., alumina or Lan Baoshi) plate 72. 线圈阵列70的构造与线圈阵列60类似;然而,与每个支撑环相关联的HTS带77被实施为两个交迭的线圈以便为每个大致圆柱形元件提供线圈阵列。 Coil array similar to array 60 configured with the coil 70; however, HTS associated with each support ring and the coil 77 is implemented as two overlapping each coil array to provide a substantially cylindrical element. 更准确地说,如所示,交迭的HTS线圈77al (上)和77bl (下)被缠绕在一个公共支撑环73上,而交迭的HTS线圈77a2 (上)和77b2 (下)缠绕在另一公共支撑环73上,并且每个线圈77al、77bl、77a2、77b2所缠绕成的结构适合用在竖直场中(例如,鞍形线圈配置)。 More specifically, as shown, overlapping HTS coil 77al (upper) and 77bl (lower) is wound on a common support ring 73, and the overlapping HTS coil 77a2 (a) and 77b2 (lower) wound another common support ring 73, and each of the coils 77al, 77bl, 77a2,77b2 are wound into a configuration suitable for use in vertical field (e.g., saddle coil configuration). 电绝缘件71设置在上下线圈交迭处以隔开交迭的上下线圈。 An electrically insulating member 71 disposed in the upper and lower coil overlapping impose spaced coils overlapped vertically. 线圈组77al/77bl和组77a2/77b2可以布置成使得它们各自相关的场(BI场)彼此正交,以使它们之间的耦合最小化,如图7C和图7D中所示。 Coil set 77al / 77bl group and 77a2 / 77b2 may be arranged such that their respective related field (BI field) orthogonal to each other, so that coupling between them is minimized, as shown in FIG. 7C and 7D.

[0060] 图8A和SB示意性示出根据本发明的一些实施例的HTS带线圈阵列,其包括大致圆柱形的导热支撑件(例如氧化铝管)83,以及实施为HTS带并且直接或者通过薄塑料片形成在氧化铝管上的HTS线圈87。 [0060] FIGS. 8A and SB schematically illustrates a HTS tape coil array in accordance with some embodiments of the present invention, which comprises a substantially cylindrical heat-conducting support (e.g., alumina tube) 83, and the embodiment of HTS tape and directly or through HTS thin plastic sheet is formed on the alumina tube coil 87. 更准确地说,图SB示出绕支撑件83周向设置的交迭的六个元件的线圈阵列配置。 More specifically, FIG. SB shows a support 83 about the periphery of the coil array configuration to provided six overlapping element. 应注意到,根据不同的实施例,为所述线圈使用高温超导体(HTS)带。 It is noted that, according to various embodiments, the coil is a high temperature superconductor (HTS) tape. 另外,如所示,电绝缘件(介电垫片)81设置在所述线圈交迭处以隔开交迭的线圈。 Further, as shown, electrical insulation (dielectric shim) 81 is provided on the coil spaced overlapping impose overlapped coils.

[0061] 图9A和9B示出与一个HTS线圈(图9A)和五个交迭的HTS线圈的线性阵列相关联的RF信号轮廓的模拟结果,显示出这种阵列可提供的均匀性。 [0061] FIGS. 9A and 9B show one HTS coil (FIG. 9A) and the RF signal profile of simulation results associated with a linear array of five overlapping HTS coil exhibits uniformity can provide such an array.

[0062] 额外的,如上面指出的那样,可以理解,根据本发明的一些实施例,根据本发明的不同实施例的低温冷却的超导RF线圈阵列线圈可以在磁共振成像系统中实施,所述磁共振系统使用诸如2009年4月I日提交的序号为12/416,606的美国专利申请、2009年4月17日提交的序号为61/170,135的临时申请中公开的超导梯度线圈,通过参考上述申请的每一个以其全部合并于此。 [0062] Additional, as noted above, will be understood, in accordance with some embodiments of the present invention, the superconducting coil RF coil array subcooled different embodiments of the present invention may be implemented in a magnetic resonance imaging system, the said superconducting magnetic resonance system using a gradient of provisional application 61 / 170,135 disclosed in Reference I April 2009, filed as U.S. Patent application 12 / 416,606, the number April 17, 2009 filed coil, by referring to each of the above applications are incorporated herein in its entirety.

[0063] 已经关于特定实施例图示和描述了本发明,这些实施例仅仅为了说明本发明的原理而并非要排除或者以其它方式限制本发明的实施方式。 [0063] The illustrated embodiment has been made regarding the specific embodiments of the present invention and described, these embodiments are merely illustrative of the principles of the invention and not to limit or otherwise to exclude embodiments of the present invention. 因此,尽管对图示实施例,以及对这些实施例的各种图示出的变型和特征的上述描述提供了许多特异细节,这些实现细节不应被解释成对本发明的范围的限制,本领域技术人员容易理解,在不偏离本发明的范围和不减弱本发明所具有的优点的前提下,容易对本发明做出许多修改、适配、变化、省略、添加和等效实现。 Thus, although the illustrated embodiments, and the description provided above of these variations and the various features illustrated embodiment numerous specific details, such implementation details should not be construed to limit the scope of the present invention, the pair of the art the art will readily appreciate, without departing from the scope of the invention and without weakening the present invention has the advantage of easy to make many modifications of the present invention, adaptation, changes, omissions, additions, and equivalent implementations. 例如,除了处理本身必需或固有的范围之外,不暗示必须要遵循本公开(包括附图)中描述的方法或过程的步骤或阶段的任何特定顺序。 For example, in addition to the process itself or inherent necessary outside the range, it does not imply that must follow the present disclosure (including the drawings) of any particular order of steps or stages of methods or processes described. 在许多情况下,在不改变所描述方法的目的、效果或输出的情况下,可以改变处理步骤的顺序,或者可以组合、改变、或省略各个示意步骤。 In many cases, without changing the case of the method described object, effect, or output, you can change the order of the processing steps, or may be combined, altered, or each step can be omitted schematically. 还应注意,术语和表述用来描述术语而非限制术语。 It should also be noted that the terms and expressions used to describe terms not of limitation. 使用术语或表述并非要排除所示和所述特征或其部分的任何等效物。 Not use terms or expressions to exclude features shown and described or any portion thereof equivalents. 此外,可以实现本发明,而并非一定要提供这里描述的或者根据公开理解的和/或在其一些实施例中可以实现的一个或多个优点。 Further, the present invention may be implemented, but not necessarily be provided or described herein and / or one or more advantages disclosed appreciated that in some embodiments thereof according to the embodiments may be implemented. 因此,本发明不应限于所公开的实施例,而应当根据所附权利要求来限定。 Accordingly, the present invention should not be limited to the disclosed embodiments, but should be defined according to the appended claims.

Claims (27)

1. 一种超导RF线圈阵列,用于在对样品进行磁共振分析期间完成从样品接收信号和发送信号到样品中的至少一个,所述超导RF线圈阵列包括: 导热部件,构造成被低温冷却;及包括超导材料的多个线圈元件,其中每个线圈元件被热耦合到所述导热部件并构造成用于下述动作的至少一个: (i)从空间区域接收磁共振信号,所述空间区域与所述多个线圈元件中的至少一个另外的线圈元件构造成从其处接收信号的那个空间区域毗邻及/或交迭,及(ii)发送射频信号到空间区域,所述空间区域与所述多个线圈元件中的至少一个另外的线圈元件构造成发送射频信号至其处的那个空间区域毗邻及/或交迭。 1. A superconducting RF coil array for performing a sample receiving signals from and transmitting signals to at least one sample, said RF coil array comprises a superconducting sample during magnetic resonance analysis: the thermally conductive member being configured to cryogenic cooling; and the coil elements comprises a plurality of superconducting material, wherein each coil element is thermally coupled to the thermally conductive member and configured for at least one of the following actions: (i) receiving magnetic resonance signals from a region of space, the spatial region and the at least one further plurality of coil elements in a coil element is configured from the received signal at the spatial region adjacent and / or overlapping, and (ii) transmitting radio frequency signals to the spatial region, the at least one further coil element is configured to transmit a radio frequency signal to a spatial region and the plurality of coil elements that spatial region at which adjacent and / or overlapping.
2.根据权利要求I所述的超导RF线圈阵列,其中每个线圈元件包括设置在导热基板上的薄膜超导线圈。 The superconducting RF coil array according to claim I, wherein each coil element comprises a thin film superconducting coils disposed on the thermally conductive substrate.
3.根据权利要求2所述的超导RF线圈阵列,其中导热基板包括矾土和蓝宝石中的至少一种,并且所述导热部件为矾土板和蓝宝石板。 The superconducting RF coil array according to claim 2, wherein at least one of the thermally conductive substrate comprises alumina and sapphire, and alumina as the thermally conductive plate member and the Lan Baoshi plate.
4.根据权利要求2所述的超导RF线圈阵列,其中每个线圈元件的导热基板被直接或间接地热耦合到所述导热部件。 4. The superconducting RF coil array according to claim 2, wherein the thermally conductive substrate of each coil element is directly or indirectly thermally coupled to the heat conducting member.
5.根据权利要求4所述的超导RF线圈阵列,其中多个导热基板中的每一个被直接地热耦合到所述导热部件,并且所述导热基板中的至少一个另外那些的每一个被间接或非直接地耦合到所述导热部件。 The superconducting RF coil array as claimed in claim 4, wherein each of the plurality of the thermally conductive substrate is a directly thermally coupled to the thermally conductive member, the thermally conductive substrate and at least one other of those each of which is indirectly or directly coupled to the heat conducting member.
6.根据权利要求5所述的超导RF线圈阵列,其中所述导热基板中的至少一个另外那些的每一个被直接地热耦合到所述直接热耦合到所述导热部件的导热基板的至少一个,由此被间接地热耦合到所述导热部件。 The superconducting RF coil array according to claim 5, wherein the thermally conductive substrate at least one other of those each of which is directly thermally coupled to the thermally conductive substrate thermally coupled directly to said at least one thermally conductive member , thereby being indirectly thermally coupled to the heat conducting member.
7.根据权利要求5所述的超导RF线圈阵列,其中所述至少一个另外那些导热基板的一个或更多个经由导热间隔部件热耦合到所述导热部件,由此被间接地热耦合到所述导热部件。 The superconducting RF coil array according to claim 5, wherein said at least one further one of those one or more thermally conductive substrate thermally coupled to the spacer member via the thermally conductive member thermally, thereby being indirectly thermally coupled to the said heat conducting member.
8.根据权利要求2所述的超导RF线圈阵列,其中薄膜超导线圈的每一个包括高温超导体。 8. The superconducting RF coil array according to claim 2, wherein each coil comprises a superconducting thin film high temperature superconductor.
9.根据权利要求I所述的超导RF线圈阵列,其中每个线圈元件包括高温超导线圈,邻近线圈元件的高温超导线圈关于导电方面是分开的并在空间上交迭。 9. The superconducting RF coil array according to claim I, wherein each coil includes a high temperature superconducting coil element, the high temperature superconducting coil adjacent the coil elements on the conductive area is separated from and overlap in space.
10.根据权利要求9所述的超导RF线圈阵列,其中邻近线圈元件的超导线圈设置在导热部件的公共表面的上面或上方。 10. The superconducting RF coil array according to claim 9, wherein the superconducting coil is provided on or above the coil elements adjacent to the common surface of the thermally conductive member.
11.根据权利要求9所述的超导RF线圈阵列,其中邻近线圈元件的超导线圈设置在导热部件的相对表面的上面或上方。 11. The superconducting RF coil array according to claim 9, wherein the superconducting coil is provided on or above the coil elements adjacent to the opposite surface of the thermal member.
12.根据权利要求I所述的超导RF线圈阵列,其中线圈元件构造成线性阵列。 According to claim I of the superconducting RF coil array, wherein the coil element is configured in a linear array.
13.根据权利要求I所述的超导RF线圈阵列,其中线圈元件构造成二维阵列。 According to claim I of the superconducting RF coil array, wherein the coil element is configured as a two-dimensional array.
14.根据权利要求I所述的超导RF线圈阵列,其中线圈元件构造成仅接收线圈。 According to claim I of the superconducting RF coil array, wherein the coil element is configured to receive-only coils.
15.根据权利要求I所述的超导RF线圈阵列,其中每个线圈元件包括至少一个高温超导线圈和导热基板,所述导热基板被热耦合到(i)至少一个高温超导线圈及(ii)所述导热部件。 According to claim I of the superconducting RF coil array, wherein each coil element comprises at least one high temperature superconducting coil and thermally conductive substrate, the thermally conductive substrate thermally coupled to (i) and at least one high-temperature superconducting coil ( ii) the heat-conducting member.
16.根据权利要求15所述的超导RF线圈阵列,其中导热基板构造成具有外表面的大致圆柱形结构,至少一个超导线圈设置在所述外表面上。 16. The superconducting RF coil array of claim 15, wherein the thermally conductive substrate is configured to be a generally cylindrical structure having an outer surface, at least one superconducting coil disposed on the outer surface.
17.根据权利要求16所述的超导RF线圈阵列,其中每个导热基板(i)是大致环形形状的,具有相对于直径而言小的高度,及(ii)具有绕其外表面设置的一个超导线圈。 17. The superconducting RF coil array of claim 16, wherein each of the thermally conductive substrate (i) is a generally annular shape having a smaller diameter with respect to height, and (ii) having disposed around its outer surface a superconducting coil.
18.根据权利要求I所述的超导RF线圈阵列,还包括热耦合到所述导热部件的至少一个导热基板,其中每个线圈元件包括高温超导线圈。 18. The superconducting RF coil array of claim I, further comprising at least one thermally conductive substrate thermally coupled to the thermally conductive member, wherein each coil includes a high temperature superconducting coil element.
19.根据权利要求18所述的超导RF线圈阵列,其中所述至少一个导热基板的每一个构造成具有外表面的大致圆柱形结构,至少一个所述高温超导线圈设置在所述外表面上。 19. The superconducting RF coil array according to claim 18, wherein said at least one thermally conductive substrate each having a structure configured substantially cylindrical outer surface, said at least one high-temperature superconducting coil disposed on the outer surface on.
20.根据权利要求19所述的超导RF线圈阵列,其中所述至少一个导热基板的每一个包括至少两个所述超导线圈,所述至少两个所述超导线圈构造成使得邻近的超导线圈(i)关于导电方面是分开的而且(ii)沿着圆柱形形状的导热基板的轴向方向移位并交迭。 20. The superconducting RF coil array according to claim 19, wherein each of said at least one thermally conductive substrate comprises at least two of the superconducting coil, the at least two superconducting coils configured such that the adjacent superconducting coil (i) on the conductive area is separated and (ii) displaced in the axial direction of the cylindrical shape of the thermally conductive substrate and overlapping.
21.根据权利要求20所述的超导RF线圈阵列,其中所述导热部件是大致平坦的并且RF线圈阵列包括两个所述导热基板,每个导热基板具有热耦合到所述导热部件的公共表面的一个轴向端,其中导热基板的尺寸和它们的间隔被构造成提供RF线圈阵列作为专用胸部成像RF线圈阵列。 , Each having a thermally conductive substrate thermally coupled to the thermally conductive member 21. The common superconducting RF coil array as claimed in claim 20, said wherein said thermally conductive member is substantially planar and the RF coil array comprises two thermally conductive substrate one axial end surface, wherein the size of the thermally conductive substrate and their intervals to provide an RF coil array configured as a dedicated breast imaging RF coil array.
22.根据权利要求19所述的超导RF线圈阵列,其中导热基板包括至少两个所述超导线圈,所述至少两个所述超导线圈构造成使得邻近的超导线圈(i)关于导电方面是分开的而且(ii)绕圆柱形形状的导热基板的周向方向移位并交迭。 22. The superconducting RF coil array according to claim 19, wherein said thermally conductive substrate comprises at least two superconducting coils, at least two of said superconducting coil configured such that the adjacent superconducting coils (i) About and the conductive area is separated from the peripheral (ii) a cylindrical shape around the thermally conductive substrate and displaced in a direction of overlapping.
23.根据权利要求22所述的超导RF线圈阵列,其中所述超导线圈的数量是至少四个。 23. A superconducting RF coil array according to claim 22, wherein the number of said superconducting coil is at least four.
24.根据权利要求18所述的超导RF线圈阵列,其中至少一个线圈元件包括超导带。 24. The superconducting RF coil array according to claim 18, wherein the at least one coil element comprises a superconducting tape.
25.根据权利要求I所述的超导RF线圈阵列,其中每个线圈元件包括设置在导热基板上的超导带线圈。 25. The superconducting RF coil array according to claim I, wherein each coil element comprises a tape of superconducting coils disposed on the thermally conductive substrate.
26.根据权利要求I所述的超导RF线圈阵列,其中每个线圈元件包括高温超导线圈,其中导热部件构造成具有外表面的大致圆柱形结构,所述高温超导线圈设置在所述外表面上,从而邻近的超导线圈(i)关于导电方面是分开的而且(ii)绕圆柱形形状的导热部件的周向方向移位并交迭。 26. The superconducting RF coil array according to claim I, wherein each coil includes a high temperature superconducting coil element, wherein the thermally conductive member is configured into a generally cylindrical configuration having an outer surface, the high temperature superconducting coil is disposed in the the outer surface, so that the adjacent superconducting coils (i) on the conductive area is separated from the circumferential and (ii) a cylindrical shape around the thermally conductive member is displaced in a direction and overlapping.
27.根据权利要求I所述的超导RF线圈阵列,其中至少一个线圈元件构造成多重共振射频线圈元件,其可操作为在相同磁场下接收对应于不同磁共振频率的信号。 27. The superconducting RF coil array according to claim I, wherein the at least one coil element is configured as a multi-resonant RF coil element signal, which is operable to receive a magnetic resonance frequency corresponding to different under the same magnetic field.
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